Updated on 2025/06/16

写真a

 
ZHAO Yuqing
 
Organization
Graduate School of Engineering Mechanical Systems Engineering 2 Assistant Professor
Graduate School
Graduate School of Engineering
Undergraduate School
School of Engineering Mechanical and Aerospace Engineering
Title
Assistant Professor
External link

Degree 1

  1. Doctor of Engineering （ 2022.6   Nagoya University ） 

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Research Interests 1

  1. Crash safety, Accident analysis, Driver response, VRU response, Active safety system evaluation

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Research Areas 1

  1. Others / Others  / 自動車工学

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Research History 1

  1. Nagoya University   Assistant Professor

    2022.7

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Awards 3

  1. 第74回自動車技術会賞論文賞

    2024.5   自動車技術会  

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    Award type：Honored in official journal of a scientific society, scientific journal 

  2. 自動車技術会大学院研究奨励賞

    2020.3  

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

  3. IRCOBI Best presentation award

    2019.9  

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    Award type：Award from international society, conference, symposium, etc.  Country：Italy

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Papers 15

  1. The influence of seated postures and anthropometry on lap belt fit in vehicle occupants: A 3D computed tomography study Reviewed

    Yoshihiko Tanaka, Houtatsu Shu, Yuqing Zhao, Koji Mizuno, Minoru Yamada, Yoichi Yokoyama, Yoshitake Yamada & Masahiro Jinzaki

    Traffic Injury Prevention   Vol. 1 ( 9 ) page： 454 - 462   2024.3

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1080/15389588.2024.2321915

  2. Predictive modeling of submarining risk in car occupants based on pelvis angle and lap belt positioning Reviewed

    Yuya Takeuchi, Yoshihiko Tanaka, Toshiharu Azuma, Yuqing Zhao, Koji Mizuno, Minoru Yamada, Yoichi Yokoyama, Yoshitake Yamada & Masahiro Jinzaki

    Traffic Injury Prevention     2023.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1080/15389588.2023.2278419

  3. 人体計測値を用いた衝突時の乗員のサブマリン予測モデルの構築 Reviewed

    田中良彦， 竹内裕也， 趙雨晴， 水野幸治， 細川成之

    自動車技術会論文集   Vol. 54 ( 4 ) page： 751 - 756   2023.7

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  4. Analysis of fall kinematics and injury risks in ground impact in car-pedestrian collisions using impulse Reviewed

    Mizuno Koji, Horiki Masahiro, Zhao Yuqing, Yoshida Airi, Wakabayashi Asei, Hosokawa Toshio, Tanaka Yoshinori, Hosokawa Naruyuki

      Vol. 176   page： 106793   2022.10

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  5. Driver Responses to Cyclists Crossing from Near and Far Side in Driving Simulator Experiments Open Access

    Zhao Yuqing, Mizuno Koji, Aoshima Yuhei, N.Kanianthra Joseph, Inagami Makoto

    International Journal of Automotive Engineering   Vol. 13 ( 2 ) page： 89 - 96   2022

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    Language：English   Publisher：Society of Automotive Engineers of Japan, INC  

    Understanding car driver responses in emergency car-to-cyclist collisions is useful for developing active safety systems to reduce injuries in car-to-cyclist collisions. In this study, driver responses toward cyclists intruding into a car’s path at an intersection were investigated in scenarios with different time-to-collisions (TTC) (1.5 s and 0.8 s for the near side approach, and 2.0 s for the far side approach) using a driving simulator. The drivers’ responses to avoid collisions were braking and swerving, whereas swerving alone was not effective for avoiding collisions. Collisions occurred when the sum of braking reaction time (BRT) and car braking deceleration time was larger than the TTC when the cyclist was visible to drivers. The mean of BRT was 0.65 and 1.35 s in the near-side and far-side scenarios, respectively. The driver’s initial gaze has an important role in affecting the driver’s time to notice the cyclist. The gaze of many drivers was located on the future path (car lane) when the cyclist was visible. As the angle between the gaze direction and the cyclist was larger, the time taken for the driver to notice the cyclist was longer. As this notice time increased, the driver’s response changed consistently from swerving to braking. Through this study, a collision area is proposed using TTC and car velocity based on the collision occurrence equation.

    DOI： 10.20485/jsaeijae.13.2_89

    Open Access

    Scopus

    CiNii Research

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  6. Analysis of normal and tangential restitution coefficients in car collisions based on finite element method Reviewed

    Yamamoto Y., Zhao Y., Mizuno K.

    International Journal of Crashworthiness   Vol. 27 ( 4 ) page： 1222 - 1231   2021.5

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：International Journal of Crashworthiness  

    In momentum-based impact models used in accident reconstructions, the restitution coefficient is a key role to determine impulses and delta-V accurately in car-to-car collisions. The restitution coefficients can be defined as the normal and the tangential direction in the contact plane, and the same value of the normal and tangential coefficients is employed in a two-dimensional PC-Crash model. Ishikawa (1993) proposed an impact model with the normal and tangential restitution coefficient, however, to the best of the author's knowledge, few studies have further investigated tangential restitution coefficients in detail. In this study, the normal and tangential restitution coefficients of the impact model were investigated based on the finite element (FE) analysis. FE simulations of angled barrier crashes with varying barrier angles as well as 16 car-to-car collisions were conducted. As the contact plane slides, the ratio of the tangential impulse to the normal impulse becomes the same value with the maximum friction coefficient. The tangential restitution coefficient is related to whether sliding occurs on the contact plane, and can be expressed as a function of the impulse ratio. The tangential restitution coefficient decreased with increasing the impulse ratio and is positive in non-sliding collisions and negative in sliding collisions. An approximate expression for the tangential restitution coefficient was formulated as a function of the generalized impulse ratio. The calculated impulses of the impact model with normal and tangential restitution coefficients were closer to the FE analysis than the PC-Crash model which uses a constant restitution coefficient of 0.1.

    DOI： 10.1080/13588265.2021.1926825

    Scopus

  7. Analysis of car driver responses to avoid car-to-cyclist perpendicular collisions based on drive recorder data and driving simulator experiments Reviewed International coauthorship

    Yuqing Zhao, Teruki Miyahara, Koji Mizuno, Daisuke Ito, Yong Han

    Accident Analysis and Prevention   Vol. 150 ( 105862 )   2020.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi.org/10.1016/j.aap.2020.105862

  8. AEB effectiveness evaluation based on car-to-cyclist accident reconstructions using video of drive recorder Reviewed

    Yuqing Zhao, Daisuke Ito, Koji Mizuno

    Traffic Injury Prevention   Vol. 20 ( 1 ) page： 100 - 106   2019.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi.org/10.1080/15389588.2018.1533247

  9. Contribution of Car Structural Components to Passenger Compartment Deceleration in Car-to-Car Frontal Collisions Open Access

    Ota Kyoka, Zhao Yuqing, Mizuno Koji, Nagasaka Kei

    Transactions of Society of Automotive Engineers of Japan   Vol. 56 ( 1 ) page： 71 - 76   2025

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    Language：Japanese   Publisher：Society of Automotive Engineers of Japan  

    To enhance occupant protection in various crash configurations, it is essential to control the deceleration of the passenger compartment. In this study, the Energy-Derivative Method was extended to a car-to-car frontal collision for a simple structure model as well as full car models by expressing velocities in the centroid coordinate system. This method allows investigation of the contribution of each component of both cars toward controlling of the deceleration of the passenger compartment in car-to-car collisions.

    DOI： 10.11351/jsaeronbun.56.71

    Open Access

    CiNii Research

  10. Finite element analysis of hip fracture risk in elderly female: The effects of soft tissue shape, fall direction, and interventions Reviewed Open Access

    Sotaro Murakami, Yuqing Zhao, Koji Mizuno, Minoru Yamada, Yoichi Yokoyama, Yoshitake Yamada, Masahiro Jinzaki

    Journal of Biomechanics     2024.6

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  11. Construction of a Thigh Impact Test Method for Falls of the Elderly Using a Whole-Body Finite Element Model

    IMAOKA Yuto, ZHAO Yuqing, MIZUNO Koji

    The Proceedings of the JSME Conference on Frontiers in Bioengineering   Vol. 2024.35 ( 0 ) page： 1C04   2024

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    DOI： 10.1299/jsmebiofro.2024.35.1c04

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  12. Finite Element Analysis of Head, Spinal and Pelvic Injuries in Elderly Backward Falls

    KAMIYA Mahiro, MIZUNO Koji, ZHAO Yuqing

    The Proceedings of the JSME Conference on Frontiers in Bioengineering   Vol. 2024.35 ( 0 ) page： 1C06   2024

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    DOI： 10.1299/jsmebiofro.2024.35.1c06

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  13. Analysis of Effective Brake Deceleration Waveforms for Reducing Pedestrian Injuries in Vehicle Collisions Open Access

    Takeda Rikuto, Yuqing Zhao, Mizuno Koji, Wakabayashi Asei, Kawase Mami, Hosokawa Toshio, Yong Han

    Transactions of Society of Automotive Engineers of Japan   Vol. 55 ( 6 ) page： 1271 - 1277   2024

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    Language：Japanese   Publisher：Society of Automotive Engineers of Japan  

    Accident data shows that pedestrians can sustain injuries from both the vehicle and the ground in vehicle-pedestrian collisions. To mitigate ground-related injuries, multi-body simulations of vehicle-pedestrian collisions were conducted, and vehicle braking deceleration after contact was optimized to minimize pedestrian injuries from impact with the ground. The optimized vehicle braking deceleration profile allowed the pedestrian’s torso rotation angle to be less than 90 degrees, depending on the vehicle shape.

    DOI： 10.11351/jsaeronbun.55.1271

    Open Access

    CiNii Research

  14. Prediction Model of Submarining of Vehicle Occupants Using Anthropometric Measurements Reviewed

    Tanaka Tanaka, Takeuchi Yuya, Zhao Yuqing, Mizuno Koji, Hosokawa Naruyuki

    Transactions of Society of Automotive Engineers of Japan   Vol. 54 ( 4 ) page： 751 - 756   2023

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    Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Society of Automotive Engineers of Japan  

    In this study, using human finite element models with various body sizes and postures, it was shown that the belt-ASIS overlap and the pelvis-belt angle are effective parameters to predict submarining using logistic regression. The two indices were applied to the anthropometry of 40 participants wearing the lap belt measured using CT systems in various postures, and submarining occurrence was calculated. It was found that the probability of submarining was high due to small initial belt-ASIS overlap and low pelvis-belt angle in the reclining posture and the slouching seating posture.

    DOI： 10.11351/jsaeronbun.54.751

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  15. Study on Brake Waveforms for Reducing Pedestrian Road Surface Injuries in Vehicle Collisions

    MIZUGUCHI Aoshi, MIZUNO Koji, ZHAO Yuqing

    The Proceedings of the JSME Conference on Frontiers in Bioengineering   Vol. 2022.33 ( 0 ) page： 1D18   2022

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    DOI： 10.1299/jsmebiofro.2022.33.1d18

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MISC 1

  1. ドライブレコーダを用いた四輪車対自転車の出会い頭事故の分析 Invited

    趙　雨晴，水野　幸治

      Vol. 75 ( 9 ) page： 96 - 101   2021.9

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

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Presentations 15

  1. Cyclist Behavior to Avoid Vehicle Collisions Using Drive Recorder Videos

    Yuqing ZHAO, Koji Mizuno

    International Cycling Safety Conference  2022.11 

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    Event date： 2022.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Dresden, Germany   Country：Germany  

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  2. Cyclist Behavior to Avoid Vehicle Collisions Using Drive Recorder Videos

    Yuqing ZHAO, Koji Mizuno

    International Cycling Safety Conference  2022.11 

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    Event date： 2022.11

    Language：Chinese  

    Venue：Dresden, Germany   Country：Germany  

  3. 転倒における大腿骨近位部の有限要素解析

    村上 颯太郎, 趙 雨晴, 水野 幸治

    第9回日本転倒予防学会 

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    Event date： 2022.10

    Language：Japanese   Presentation type：Poster presentation  

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  4. 転倒における大腿骨近位部の有限要素解析

    村上　颯太郎，趙　雨晴，水野　幸治

    第9回日本転倒予防学会 

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    Event date： 2022.10

    Language：Japanese   Presentation type：Poster presentation  

  5. ドライブレコーダとドライビングシミュレータを用いた四輪車対自転車出会い頭衝突回避のためのドライバ反応の分析

    趙 雨晴, 宮原 輝貴, 水野 幸治, 伊藤 大輔

    第56回日本交通科学学会学術講演会  2020.11 

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    Event date： 2020.11

    Language：Japanese  

    Venue：オンライン  

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  6. ドライブレコーダとドライビングシミュレータを用いた四輪車対自転車出会い頭衝突回避のためのドライバ反応の分析

    趙　雨晴，宮原 輝貴, 水野 幸治, 伊藤 大輔

    第56回日本交通科学学会学術講演会  2020.11 

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    Event date： 2020.11

    Language：Japanese  

    Venue：オンライン  

  7. AEB effective evaluations by accident reconstructions using videos of drive recorders in perpendicular and turning car-to-cyclist collisions International coauthorship International conference

    Yuqing ZHAO, Daisuke Ito, Koji Mizuno, Chunyu Kong

    International Research Council on Biomechanics of Injury (IRCOBI)  2019.9 

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    Event date： 2019.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Italy, Florence   Country：Italy  

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  8. AEB effective evaluations by accident reconstructions using videos of drive recorders in perpendicular and turning car-to-cyclist collisions International coauthorship International conference

    Yuqing ZHAO, Daisuke Ito, Koji Mizuno, Chunyu Kong

    International Research Council on Biomechanics of Injury (IRCOBI)  2019.9 

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    Event date： 2019.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Italy, Florence   Country：Italy  

  9. ドライビングシミュレータによる四輪車対自転車の出会い頭事故再現

    宮原輝貴, 趙 雨晴, 孔 春玉, 伊藤大輔, 青木宏史, 水野幸治

    第55回日本交通科学学会学術講演会  2019.6 

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    Event date： 2019.6

    Language：Japanese   Presentation type：Oral presentation (general)  

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  10. ドライビングシミュレータによる四輪車対自転車の出会い頭事故再現

    宮原輝貴，趙 雨晴，孔 春玉，伊藤大輔，青木宏史，水野幸治

    第55回日本交通科学学会学術講演会  2019.6 

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    Event date： 2019.6

    Language：Japanese   Presentation type：Oral presentation (general)  

  11. ドライブレコーダ映像を用いた事故再現による衝突被害軽減ブレーキの効果評価

    趙 雨晴, 三久保瑛, 水野幸治, 伊藤大輔, 近藤由麻, 細川成之

    自動車技術会春期学術講演会  2018.5 

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    Event date： 2018.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：横浜  

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  12. ドライブレコーダ映像を用いた事故再現による衝突被害軽減ブレーキの効果評価

    趙 雨晴，三久保瑛，水野幸治，伊藤大輔，近藤由麻，細川成之

    自動車技術会春期学術講演会  2018.5 

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    Event date： 2018.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：横浜  

  13. FE analyses of the lap belt interactions with the pelvis for diverse occupants in various sitting postures

    Yoshihiko Tanaka, Yuya Takeuchi, Yuqing Zhao, Na Yang, Koji Mizuno

    27th International Technical Conference on the Enhanced Safety of Vehicles (ESV)  2023.4 

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    Language：English  

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  14. Analysis of driver’s reaction and gaze in car-to-cyclist collisions using a driving simulator

    Yuqing Zhao, Nitta Yuki, Koji Mizuno

    JSAE Congress (Autumn)  2024.10 

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    Presentation type：Oral presentation (general)  

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  15. Optimal braking profile to minimize pedestrian ground injury risk during car-to-pedestrian collisions

    Yuqing Zhao, Rikuto Takeda, Koji Mizuno

    68th Association for the Advancement of Automotive Medicine (AAAM) Annual Scientific Conference  2024.11 

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    Language：English   Presentation type：Oral presentation (general)  

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KAKENHI (Grants-in-Aid for Scientific Research) 1

  1. 自動運転に向けた解剖学を考慮した人体のシートベルト拘束方法に関する研究

    Grant number：23K22996  2024.4 - 2025.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    水野 幸治, 田中 良知, 細川 成之, 一杉 正仁, 趙 雨晴, 田中 良知, 細川 成之, 一杉 正仁, 趙 雨晴

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    Authorship：Coinvestigator(s) 

    自動車衝突時にラップベルトは常に乗員の骨盤前縁に係合し続けていなければならない．ラップベルトが骨盤から外れると（サブマリン），ベルトが腹部に侵入し，重篤な傷害をもたらす．将来の自動運転における自由な着座姿勢も考えると，衝突においてサブマリンの防止は乗員保護における重要な課題である．
    本研究では，被験者の立位CTからベルトと骨盤の位置関係を求め，さらに，実車での着座姿勢，ベルトの位置を調べる．さらに，CT画像を基に人体有限要素モデルを構築する．これにより，ラップベルトが骨盤を拘束するメカニズムを明確化し，男女別，腹部形状，着座姿勢およびベルト経路を考慮した，サブマリン防止方法を確立する．
    国際的に自動運転に向けて，自由な着座姿勢に対する乗員の拘束方法が研究されている．それにともない，後席も含めたラップベルトによる骨盤の拘束方法が大きな課題となっているが，いまだに解は見出されていない．本研究は，「後席乗員の実際の着座状況はどのようなものか」「ラップベルトと骨盤の初期位置，衝突時にラップベルトが骨盤を動的にどのように係合するか，なぜベルトの骨盤からのはずれ（サブマリン）が発生するのか」というベルトと骨盤の相互作用に関する基本的な問い，さらに，「この相互作用が各自の解剖学的特徴，シートベルトの幾何学的特性，シートの特性などによってどのように影響を受けるのか」という問いからなる．
    これらの問いに対して，サブマリンの発生メカニズムに関して，人体モデルを用いた有限要素解析による後席乗員の衝撃シミュレーションをもとに，サブマリンが骨盤の後方回転およびラップベルトと骨盤前縁のラップ率によって記述できることを明らかにした．
    さらに，50名からなるベルト着用状態での着座CTデータを用いて，ベルトの骨盤との係合，骨盤の姿勢に関して，ヒップポイント位置とシートバック角度が大きな影響を与えることを示した．また，後席乗員の着座状況を調べ，時間とともに骨盤角が推移するという結果を得た．
    CTデータをもとに，人体有限要素モデルの形状モーフィングを行い，標準体格男性に加えて，低BMI，高BMIの人体モデルを作成した．これらのモデルをリクライニング姿勢，スローチング姿勢で着座させ，サブマリン発生を着座時の骨盤角とベルトオーバーラップによりモデル化した．
    これらの結果は，英語審査論文（2編），日本語審査論文（2編）として公表した．うち１編はその内容の新規性が認められ，自動車技術会論文賞の受賞に至った．
    研究開始から，男女別の身体計測，姿勢別，サブマリンの発生状況を検討してきた．研究の一つの課題である実際のベルトの骨盤への係合状況の解明については，被験者のCTによる基礎データを分析したのち，被験者の実車の後席を用いた計測，走行中の着座姿勢の変化を調べている．これにより，ベルトと骨盤の係合が，骨盤の後傾姿勢とヒップポイント（大転子位置）によって表すことができること，これが着座時間により変化することが明確になる等，重要な知見が得られ，順調に推移している．
    もう一つの課題は，様々な体格や姿勢の乗員に対してサブマリンを表現する変数の明確化である．CTデータを基に低BMI，標準BMI，高BMIの男女の人体有限要素モデルを作成して，後席に着座した状態で減速度場を与え，様々な姿勢下でサブマリン発生を調べた．様々な体格や姿勢を取る人体についてサブマリンの発生確率を求めることができた．発生確率はベルトのアンカー位置やプリテンショナーなどで変わることも明確になり，設計への方向性も得られた．
    このように本研究は，様々な体格と姿勢の乗員に関するサブマリンの発生の機序明確化と防止に向けた対策を考慮した設計方法の提案に向けて順調に推移している．
    男女被験者について，さらに人数を増やし，実車を用いて実際の着座姿勢およびシートベルトの装着位置について計測する．また，走行中の着座姿勢の変化について映像と共に，特に，骨盤の角度をモニターし，サブマリン発生リスクの時間推移を調べる．また，立位CTによる撮影も進め，高齢者の立位姿勢における脊椎の姿勢についても調査する．
    昨年度作成した低BMI，標準BMI，高BMIの男性の人体有限要素モデルに加えて，モーフィング手法を用いて女性の高BMI，低BMIの人体モデルも作成する．この一連のモデル作成により，様々な体格，着座姿勢を取る乗員に対する前方衝撃（50 km/h）について有限要素解析を行うことが可能となる．現在，国際的な課題となっている女性の方がサブマリンが発生しやすい要因を検討する．また，現在，衝突実験で用いられているHybrid III 50M, 5F, 及びTHOR 50M, 5Fの有限要素モデルについても衝撃シミュレーションを行い，人体モデルと骨盤の後方回転メカニズムの比較を行う．
    有限要素解析から求めたサブマリン発生を支配する変数を，実測から得たベルト装着位置データに適用し，様々な体格や姿勢を取る人体についてサブマリンの発生確率を求める．シートパン形状，シートクッションの剛性，ラップベルトのアンカー位置，プリテンショナーなどの設計変数を変更し，骨盤の後方回転を低減するための方法を求める．これにより，本研究の最終目的であるベルトの骨盤からの滑りを防止するためのシートベルトシステムの設計指針を提案する

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To the head of KAKENHI (Grants-in-Aid for Scientific Research).▲
 

Teaching Experience (On-campus) 2

  1. 学生実験

    2023

  2. 物理学実験

    2022

To the head of Teaching Experience (On-campus).▲